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Check valve

A check valve, valve core technology, applied in the direction of lift valve, control valve, valve device, etc., can solve problems such as valve chattering

Pending Publication Date: 2022-01-07
SWAGELOK CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Valve chatter can occur when forces balance (i.e., cancel) and system media flow is unstable

Method used

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Embodiment Construction

[0024] Although various inventive aspects, concepts and features of the present invention may be described and illustrated herein as being embodied in combination in exemplary embodiments, these various aspects, concepts and features can be used alone or in combination in many alternative embodiments. Various combinations and subcombinations are used. Unless here clearly got rid of, all such combinations and sub-combinations are intended to fall within the scope of the present invention. Furthermore, while various alternative embodiments related to the various aspects, concepts, and features of the invention - such as alternative materials, structures, configurations, methods, circuits, devices and components, software, hardware, control logic, and forms , fit and function related alternatives, etc. - may be described herein, but such description is not intended to be a complete or exhaustive list of available alternative embodiments, whether currently known or later developed...

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Abstract

A check valve includes a valve body (210) and a valve element (230). The valve body includes an outer circumferential wall (223) extending between an inlet port (221) and an outlet port (222), an inner circumferential wall (245) defining a guide passage extending to a radial wall, one or more outer peripheral flow passages between the inner circumferential wall and the outer circumferential wall and extending from the inlet port to the outlet port, and a valve seat (225) surrounding the inlet port. The valve element is retained in the guide passage and is movable between a closed position and an open position. The valve body includes a body housing (220) defining the outer circumferential wall and a carrier member (240) assembled with the body housing and defining the inner circumferential wall and the radial wall. The valve seat comprises an annular seal member retained between an end face of the carrier member and a counterbore portion of the body housing.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Provisional Patent Application Serial No. 62 / 850,611, filed May 21, 2019, entitled "CHECK VALVE" and U.S. Provisional Patent Application Serial No. 62 / 850,611, filed March 10, 2020, entitled "CHECK VALVE" Priority and all benefit of Ser. No. 62 / 987,422, the entire disclosures of both of which are incorporated herein by reference. Background technique [0003] Check valves are used to allow one-way flow but block reverse flow to prevent undesired backflow in piping systems. The spool of a check valve (eg, a poppet valve) typically has two primary forces acting on it, a closing force produced by a spring, magnet, or gravity, and an opening force produced by the upstream fluid. Valve chatter can occur when the forces balance (ie, cancel) and the system media flow is unstable. It is often advantageous to have a much greater force to open the poppet than to close it; however, this is usually ach...

Claims

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Application Information

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IPC IPC(8): F16K15/02F16K1/32F16K1/36F16K27/02
CPCF16K15/026F16K1/32F16K1/36F16K27/0209F16K15/044F16K1/465F16K15/063
Inventor 马克·A·克拉森布兰登·W·基皮尔A·P·马沙尔
Owner SWAGELOK CO